{
  "type": "object",
  "required": ["providers"],
  "properties": {
    "providers": {
      "type": "object",
      "propertyNames": {
        "pattern": "^[A-Za-z_]+"
      },
      "patternProperties": {
        "^[A-Za-z_]+": {
          "type": "object",
          "required": ["sha256"],
          "properties": {
            "sha256": {
              "type": "string"
            }
          }
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
